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author | Ivan Zhakov <ivan@apache.org> | 2022-06-29 14:46:27 +0000 |
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committer | Ivan Zhakov <ivan@apache.org> | 2022-06-29 14:46:27 +0000 |
commit | 166a06a11e80a5479a806ebb5a213d1c3e547fc7 (patch) | |
tree | 020cb3a94ba821cb6147bd6810ddc4cbe3e08aaf /network_io/win32/sendrecv.c | |
parent | 9aab4125498301f37c769e761cdababdab196b63 (diff) | |
parent | 4000041d0ea6f7fccea67d2ac3d8205270b1cf1a (diff) | |
download | apr-166a06a11e80a5479a806ebb5a213d1c3e547fc7.tar.gz |
On 'thread-name' branch: Merge changes from trunk.thread-name
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/branches/thread-name@1902353 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'network_io/win32/sendrecv.c')
-rw-r--r-- | network_io/win32/sendrecv.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/network_io/win32/sendrecv.c b/network_io/win32/sendrecv.c index 20d802042..eb4dd241a 100644 --- a/network_io/win32/sendrecv.c +++ b/network_io/win32/sendrecv.c @@ -34,7 +34,10 @@ * than 8193 bytes. */ #define MAX_SEGMENT_SIZE 65536 + +/* Maximum number of WSABUF allocated for a single apr_socket_sendv() */ #define WSABUF_ON_STACK 50 +#define WSABUF_ON_HEAP 500 APR_DECLARE(apr_status_t) apr_socket_send(apr_socket_t *sock, const char *buf, apr_size_t *len) @@ -91,18 +94,26 @@ APR_DECLARE(apr_status_t) apr_socket_sendv(apr_socket_t *sock, apr_status_t rc = APR_SUCCESS; apr_ssize_t rv; apr_size_t cur_len; - apr_int32_t nvec = 0; - int i, j = 0; + apr_size_t nvec = 0; + apr_size_t n; + int i; DWORD dwBytes = 0; WSABUF *pWsaBuf; for (i = 0; i < in_vec; i++) { cur_len = vec[i].iov_len; - nvec++; + while (cur_len > APR_DWORD_MAX) { + if (nvec >= WSABUF_ON_HEAP) { + break; + } nvec++; cur_len -= APR_DWORD_MAX; } + if (nvec >= WSABUF_ON_HEAP) { + break; + } + nvec++; } pWsaBuf = (nvec <= WSABUF_ON_STACK) ? _alloca(sizeof(WSABUF) * (nvec)) @@ -110,25 +121,23 @@ APR_DECLARE(apr_status_t) apr_socket_sendv(apr_socket_t *sock, if (!pWsaBuf) return APR_ENOMEM; - for (i = 0; i < in_vec; i++) { + for (n = i = 0; n < nvec; i++) { char * base = vec[i].iov_base; cur_len = vec[i].iov_len; - + do { if (cur_len > APR_DWORD_MAX) { - pWsaBuf[j].buf = base; - pWsaBuf[j].len = APR_DWORD_MAX; + pWsaBuf[n].buf = base; + pWsaBuf[n].len = APR_DWORD_MAX; cur_len -= APR_DWORD_MAX; base += APR_DWORD_MAX; } else { - pWsaBuf[j].buf = base; - pWsaBuf[j].len = (DWORD)cur_len; + pWsaBuf[n].buf = base; + pWsaBuf[n].len = (DWORD)cur_len; cur_len = 0; } - j++; - - } while (cur_len > 0); + } while (++n < nvec && cur_len > 0); } rv = WSASend(sock->socketdes, pWsaBuf, nvec, &dwBytes, 0, NULL, NULL); if (rv == SOCKET_ERROR) { |